/*
 *  Copyright 2019-2020 Zheng Jie
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package me.zhengjie.modules.anniversary.service.impl;

import cn.hutool.core.util.ObjectUtil;
import lombok.RequiredArgsConstructor;
import me.zhengjie.config.FileProperties;
import me.zhengjie.exception.BadRequestException;
import me.zhengjie.modules.anniversary.service.ImgUploadService;
import me.zhengjie.modules.anniversary.service.dto.ImgResultDto;
import me.zhengjie.utils.FileUtil;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;

/**
* @author Zheng Jie
* @date 2019-09-05
*/
@Service
@RequiredArgsConstructor
public class ImgUploadServiceImpl implements ImgUploadService {

    private final FileProperties properties;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public ImgResultDto upload(MultipartFile multipartFile) {
        FileUtil.checkSize(properties.getMaxSize(), multipartFile.getSize());
        String suffix = FileUtil.getExtensionName(multipartFile.getOriginalFilename());
        String type = FileUtil.getFileType(suffix);
        File file = FileUtil.upload(multipartFile, properties.getPath().getUpload() + type +  File.separator);

        String[] urlData = new String[1];
        ImgResultDto imgResultDto = new ImgResultDto();

        if(ObjectUtil.isNull(file)){
            imgResultDto.setErrno(1); // 错误码为非0表示上传出错
            throw new BadRequestException("上传失败");
        }

        urlData[0] = file.getName();
        imgResultDto.setErrno(0);
        imgResultDto.setData(urlData);
        return imgResultDto;
    }

}
